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Diffstat (limited to 'sysdeps/i386/fpu/fegetmode.c')
-rw-r--r--sysdeps/i386/fpu/fegetmode.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/fegetmode.c b/sysdeps/i386/fpu/fegetmode.c
new file mode 100644
index 0000000000..86de9f5548
--- /dev/null
+++ b/sysdeps/i386/fpu/fegetmode.c
@@ -0,0 +1,32 @@
+/* Store current floating-point control modes. i386 version.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <unistd.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (modep->__control_word);
+ if (HAS_CPU_FEATURE (SSE))
+ __asm__ ("stmxcsr %0" : "=m" (modep->__mxcsr));
+ return 0;
+}